Transición epidemiológica: la otra cara de la moneda

The model of epidemiological transition proposed by Omram explains the changes in disease patterns in communities. In societies with a high level of development this model has been complemented with the study of the post transition process. In this context, the emergence of allergic diseases, asthma...

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Autor principal: Valdivia C,Gonzalo
Lenguaje:Spanish / Castilian
Publicado: Sociedad Médica de Santiago 2006
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872006000600001
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spelling oai:scielo:S0034-988720060006000012006-08-14Transición epidemiológica: la otra cara de la monedaValdivia C,Gonzalo Autoimmune disease Chronic disease Communicable disease Epidemiology The model of epidemiological transition proposed by Omram explains the changes in disease patterns in communities. In societies with a high level of development this model has been complemented with the study of the post transition process. In this context, the emergence of allergic diseases, asthma and subsequently, of autoimmune diseases, has reached worrisome proportions in some countries, and no model can explain these changes. The hygiene theory supported by Strachan gives a reasonable explanation to this phenomenon. It postulates that the reduction of early exposure to biological agents, along with an improvement of sanitation conditions, immunizations and medical therapies, causes an asymmetrical immunological response, favoring the expression of Th2 response. The hygiene theory does not fully explain by itself what is happening in developed countries and it is not universally accepted. Chile is experiencing an epidemiological transition from a high burden of infectious diseases to a growing prevalence of non communicable diseases. In a previous similar setting in developed countries, there is some evidence to suspect that asthma, allergic and autoimmune diseases are becoming part of the epidemiological situation of Chileinfo:eu-repo/semantics/openAccessSociedad Médica de SantiagoRevista médica de Chile v.134 n.6 20062006-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872006000600001es10.4067/S0034-98872006000600001
institution Scielo Chile
collection Scielo Chile
language Spanish / Castilian
topic Autoimmune disease
Chronic disease
Communicable disease
Epidemiology
spellingShingle Autoimmune disease
Chronic disease
Communicable disease
Epidemiology
Valdivia C,Gonzalo
Transición epidemiológica: la otra cara de la moneda
description The model of epidemiological transition proposed by Omram explains the changes in disease patterns in communities. In societies with a high level of development this model has been complemented with the study of the post transition process. In this context, the emergence of allergic diseases, asthma and subsequently, of autoimmune diseases, has reached worrisome proportions in some countries, and no model can explain these changes. The hygiene theory supported by Strachan gives a reasonable explanation to this phenomenon. It postulates that the reduction of early exposure to biological agents, along with an improvement of sanitation conditions, immunizations and medical therapies, causes an asymmetrical immunological response, favoring the expression of Th2 response. The hygiene theory does not fully explain by itself what is happening in developed countries and it is not universally accepted. Chile is experiencing an epidemiological transition from a high burden of infectious diseases to a growing prevalence of non communicable diseases. In a previous similar setting in developed countries, there is some evidence to suspect that asthma, allergic and autoimmune diseases are becoming part of the epidemiological situation of Chile
author Valdivia C,Gonzalo
author_facet Valdivia C,Gonzalo
author_sort Valdivia C,Gonzalo
title Transición epidemiológica: la otra cara de la moneda
title_short Transición epidemiológica: la otra cara de la moneda
title_full Transición epidemiológica: la otra cara de la moneda
title_fullStr Transición epidemiológica: la otra cara de la moneda
title_full_unstemmed Transición epidemiológica: la otra cara de la moneda
title_sort transición epidemiológica: la otra cara de la moneda
publisher Sociedad Médica de Santiago
publishDate 2006
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872006000600001
work_keys_str_mv AT valdiviacgonzalo transicionepidemiologicalaotracaradelamoneda
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